Period Underwear Bundles

Your Cycle, Covered

Bundle + SAVE up to 20% (plus, unlock a FREE GIFT!)

Build Your Bundle →

4.9/5 (1000+ Customers)

Mix & match to suit your flow and unlock serious period savings

1

%

Off When You Buy 4 Items

1

%

Off When You Buy 5 Items

1

%

Off When You Buy 6+ Items

🎁 Plus when you buy 6, get a FREE Waterproof Wet Bag!

OEKO-TEX Certified Fabrics

Leakproof, Breathable & Comfy

Reusable For 2+ Years

OEKO-TEX Certified Fabrics

Leakproof, Breathable & Comfy

Reusable For 2+ Years

Find Your Perfect Fit

Three Styles. All-Day Confidence.

Real Reviews

★★★★★

I've tried several brands of period underwear, but this one really stood out. The coverage was noticeably better, offering more security—especially on heavier days. The fabric felt like higher quality compared to others I've used, soft yet durable, and it held up well after washing. It offered reliable protection without sacrificing comfort or style.

Havva
Perth, Australia
★★★★★

I’m so grateful to discover this brand! I have been wearing period pants from other brands for years but have never found any that are perfectly leakproof — until now, thanks to these classic briefs from Fri Period! For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long.

Frances
Palo Alto, CA
★★★★★

I'd been wanting to try period underwear and then a friend got me these. I was nervous at first but they absolutely do the job and are so comfy to wear. Washing is easy and they come out like new each time. Plus the print is really cute. I'm def gonna get more!

Noela
Houston, TX
★★★★★

The last thing I want on my period is more discomfort. This underwear has made this time of the month so much more comfortable.

Rebecca
★★★★★

I waited to go through two cycles prior to reviewing. I wore the underwear on both a medium/light day, as well as on a heavy day. They are very comfortable and held everything in with no leaking. They are easy to care for and washed well. It is great to purchase a sustainable product that is also packaged in sustainable, compostable packaging! I will definitely be purchasing again!

Megan
California

FAQs

We've done our best to answer your most frequently asked questions below, but if we've missed anything, reach out!

Can I mix styles in a bundle?

Yes! That's the whole idea. You can mix Classic Briefs, Period Boxers, and Hipsters in any combination.

Most people build a bundle around their cycle - a couple of heavier-absorbency pairs for day one and two, and lighter styles for the tail end. Whatever works for your flow! 💕

How do I know which size to order?

Use our size guide - it takes less than a minute and covers all three styles. If you're between sizes, we recommend sizing up for the most comfortable fit.

And if you get it wrong? No stress. First-time customers get a free size exchange, so there's no risk in trying.

Which bundle is right for my flow?

A good rule of thumb: most people need 5–7 pairs to get through a full cycle without doing laundry mid-period.

If your period runs 4–5 days, a 5-pair bundle is a great starting point. If you have a heavier flow or want to go longer between washes, go for 7+.

Check the absorbency guide on each style to match pairs to your heaviest days.

Are they safe to wear? What does OEKO-TEX certified mean?

All Fri Period styles are made from OEKO-TEX certified fabrics, which means they've been independently tested and confirmed free from harmful substances.

Our products are also made without PFAS (the "forever chemicals" found in some period product brands). So you're getting protection that's good for you AND the planet. 🌎 💕

How much will I actually save compared to buying individually?

Bundles save you 15–20% depending on how many pairs you choose - and the more you add, the bigger the saving.

🎁 Buy 6 or more and you'll also get a free Waterproof Wet Bag, which makes it even better value. The per-pair price is shown on each bundle so you can see exactly what you're getting.

How long will they last?

With proper care, each pair lasts 2+ years.

That's hundreds of dollars saved compared to disposables. Wash on a gentle cold cycle, skip the dryer, and they'll hold up beautifully.

What if I don't like them?

First-time customers get a free size exchange if the fit isn't right.

If you have an issue beyond sizing, reach out to us directly — we're a small, founder-led brand and we genuinely want to make it right. You can contact us here.